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24,993 verified issues
git "ping": check if remote repository exists
I'd like to know whether a remote repository exists. Here's what I came up with: Is there any better way?
How can I search within the output buffer of a tmux shell?
I can't get this to work. How can I search the buffer of a tmux shell?
How do I change my default shell on a AWS instance?
I want to change my shell from the default bash shell to zsh on my Amazon EC2 instances. How do I go about doing it? Thanks!
How do I find a file by filename in Mac OSX terminal?
I want to find a file on my Macbook with the filename: . I've tried to use spotlight, but it doesn't find it. When I tried find, and used: , I got errors back. What is the proper syntax to find a file by filename with the find command on a Mac OSX terminal?
How to tell how many CPUs (cores) you have on Windows 7
I got me a nice new laptop and I want to know a bit more about the hardware. How can I see how many CPUs my computer has in Windows 7? (Note: Clicking on Start → right clicking on Computer → selecting properties shows me the processor type, but it does not say anything about the core count.)
How can I quit frozen Spotlight without rebooting my computer?
I opened up Spotlight, typed '12*' to do some multiplication and it's been frozen for the last 20 minutes. I am looking for how to restart the program/service/whatever it technically is, but it's not in the Force Quit menu, so what is the quickest way to kill this process without restarting my computer? (I am on Mac OS X Snow Leopard)
Which linux filesystem works best with SSD
From wiki: The vital TRIM function is supported by the Linux OS starting with 2.6.33 kernel (available early 2010). However, support amongst various filesystems is still inconsistent or not present. Proper partition alignment is also not carried out by installation software. So, which filesystem works best for SSD and supports TRIM + partition alignment during install and is available on Ubuntu?
List files bigger than filesize specified
How can I make ls (or any other command) list only files bigger than a specific file size?
What does the dot mean at the end of `-rw-r--r--`? How do you set it with `chmod`?
Some of the files in my directories under Linux have a at the end of the permissions listing. What does the dot mean at the end of ? How do you set it with ?
Where to upload PGP public key? Are KeyServers still surviving?
I want to upload my PGP public key on a public server. Till the time PGP was an independent organization, I heard a lot about KeyServers, but after Symantec acquired PGP, what is the future of these servers? Is there any other alternative way to keep my public keys online?
How to convert .ppk key to OpenSSH key under Linux?
I know that is possible to convert .ppk under puttygen in Windows, but how to do that on Linux? Is this possible ?
How do I select all text in Vi/Vim?
Using VI tool for editing config files. How can I select all the text in a file (around 1000 lines), copy it, then paste into Google Docs?
How to tell git which private key to use?
has the option to tell which private key file to use when authenticating: Selects a file from which the identity (private key) for RSA or DSA authentication is read. The default is for protocol version 1, and and for protocol version 2. Identity files may also be specified on a per-host basis in the configuration file. It is possible to have multiple options (and multiple identities specified in configuration files). Is there a similar way to tell which private key file to use on a system with multiple private keys in the directory?
Avoid password prompt for keys and prompts for DN information
I am using following code to generate keys: I have two questions: How can I skip the passphrase prompting? Would it be reasonably safe for me to do so? (as in it should not be downright foolish like anyone should be able to hack the certificate) How do I avoid the prompting for the country name, organization etc. I hope I can give them on command prompt (the man page shows only top level options for OpenSSL)
What is the difference between NAT / Bridged / Host-Only networking?
VMWare: What is NAT vs. Bridged vs. Host-Only?
Permissions on private key in .ssh folder?
I changed my permissions in my folder and now when I use a piece of software that uses my private key, I have to type my password each time. What should my permissions be on my file to not have to type a password each time I use an app that uses it? Currently my permissions are set to:
Setting and using variable within same command line in Windows cmd.exe
In Bash, I can do and will be run with set to , but this won't affect the value of in the shell itself. Is it possible to do this in ?
GIT merge master into a branch
I have been developing a new feature on a new branch, and on the side have committed quite a few changes on my master branch. Is it possible to merge the master branch into my new branch to keep it up-to-date so that I won't have too many merge conflicts once the new feature is finished?
How to open a .tar.gz file in Windows?
I need to open a file that sadly is only available in the file format and I am using Windows 7. I can unzip the file using 7-zip but after that I still have a file that I can't open in Windows. Is there a way to open files on Windows?
Is there a list of Windows special directories/shortcuts (like %TEMP%)?
I'm looking for a reference list of shortcuts like . When I'm using Windows+R or Windows Explorer and type , the Windows Explorer takes me to the Temp directory. Are there more of these shortcuts? UPDATE: I found a helpful reference page for environment variables (might not be up-to-date with Windows 7).